Process for producing trans-4-hydroxy-L-proline
US7238501B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 2, 2003 |
| Grant date | Jul 3, 2007 |
| Priority date | — |
| Expiry date | Sep 19, 2023 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC12Y114/11002
- WIPO fieldBiotechnology
- WIPO sectorChemistry
Abstract
The present invention is directed to a process for producing trans-4-hydroxy-L-proline, which is useful as a raw material for medicines or as an additive to foods. In the process, L-proline is converted into trans-4-hydroxy-L-proline in the presence of an enzyme source which is derived from a microorganism belonging to the genus Dactylosporangium, Amycolatopsis or Streptomyces and which catalyzes the hydroxylation of L-proline into trans-4-hydroxy-L-proline, a divalent iron ion and 2-ketoglutaric acid, in an aqueous medium, and the produced trans-4-hydroxy-L-proline is collected from the aqueous medium. In addition, the present invention is directed to a process for producing trans-4-hydroxy-L-proline, wherein the L-proline biosynthesis activity of the host cell of the transformant is reinforced.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.